US3099516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding a foam plastic having skins on selected surface portions
Assignee: Lanteris Space LLC
•
Filing: 1960-08-29
•
Granted: 1963-07-30
•
Expires: 1980-08-29
Abstract
No abstract record available.
Inventors
- 👤 Russell M Henrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:13
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/34; B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/0407; B29K; B29K2075/00; B29K2105/00; B29K2105/04; B29K2105/043; B29K2905/00; B29K2905/02; B29L; B29L2031/00; B29L2031/724; B29L2031/762; B29L2031/7622; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S264/00; Y10S264/14; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249989
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
IN THE PROCESS OF PRODUCING A URETHANE FOAM STRUCTURE BY REACTING AN ISOCYANATE WITH A SUITABLE POLYOL, THE METHOD OF PRODUCING A DENSE SKIN ON SELECTED SURFACE PORTIONS OF SAID FOAM WHICH COMPRISES: EMPLOYING A FOAMING REAGENT ACTIVATABLE BY THE EXOTHERMIC HEAT OF REACTION; AND SUBJECTING SAID SELECTED SURFACE PORTIONS OF
Claim 2
Dependent Claim
51 words
IN THE PROCESS OF PRODUCING A URETHANE FOAM STRUCTURE BY REACTING AN ISOCYANATE WITH A SUITABLE POLYOL, THE METHOD OF PRODUCING A DENSE SKIN ON SELECTED SURFACE PORTIONS OF SAID FOAM WHICH COMPRISES: EMPLOYING A FOAMING REAGENT ACTIVATABLE BY THE EXOTHERMIC HEAT OF REACTION; AND SUBJECTING SAID SELECTED SURFACE PORTIONS OF
References Cited (Backward Citations)
US2423700A
Cited
US2537977A
Cited
US2740743A
Cited
US2826244A
Cited
US2898626A
Cited
US2898632A
Cited
GB821342A
Cited
US2957832A
Cited
US3007203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |